Process for the discontinuous profile grinding or profile milling of gear wheels

A process for the discontinuous profile grinding or milling of gear wheels with wheel-type or shank-type tools in which the flanks of a workpiece are worked with one tool or with a tool for the right and left flanks in separate operations, comprising the steps of:

• (a) setting approximate parameters a, e, .zeta. and .psi. for the workpiece to be worked by the tool so as to avoid large profile deviations, wherein
• a is the center-to-center or profile distance between predetermined points on the tool and workpiece,
• e is the eccentricity of the tool,
• .zeta. is the swiveling angle of the tool, and
• .psi. is the initial angle of rotation of the tool;
• (b) determining by calculation or trial the profile of the workpiece resulting from work on the workpiece by the tool based on said approximate parameters;
• (c) providing a predetermined required profile for the finished workpiece;
• (d) comparing said work results and profile with the required profile of the finished workpiece;
• (e) altering said setting parameters;
• (f) determining the work profile of the workpiece based on the altered setting parameters, and
• (g) repeating the process in the aforesaid manner until the work profile corresponds with the required profile for the finished workpiece.